/// <summary>
/// 获取签名密码
/// </summary>
/// <param name="digitalSignatureFile">数字证书文件</param>
/// <returns>私钥</returns>
public static string GetSignedPassword(string digitalSignatureFile)
{
// 0:这里需要处理异常信息
// 1:定义私钥
string signedPassword = string.Empty;
// 2:读取证书文件
string digitalSignature = FileUtil.ReadBinaryFile(digitalSignatureFile);
// 3:解密文件
string xmlFile = StringCoding.DecodeDES(digitalSignature, "DotNetKey");
// 4:按XML文件读取
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.LoadXml(xmlFile);
signedPassword = xmlDocument.SelectSingleNode("//DigitalSignature/Key").Attributes["SignedPassword"].Value;
return(signedPassword);
}
/// <summary>
/// 获取私钥
/// </summary>
/// <param name="digitalSignatureFile">数字证书文件</param>
/// <param name="signedPassword">签名密码</param>
/// <returns>私钥</returns>
public static string GetPrivateKey(string digitalSignatureFile, string signedPassword)
{
// 0:这里需要处理异常信息
// 1:定义私钥
string privateKey = string.Empty;
// 2:读取证书文件
string digitalSignature = FileUtil.ReadBinaryFile(digitalSignatureFile);
// 3:解密文件
string xmlFile = StringCoding.DecodeDES(digitalSignature, "DotNetKey");
// 4:按XML文件读取
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.LoadXml(xmlFile);
string keySignedPassword = xmlDocument.SelectSingleNode("//DigitalSignature/Key").Attributes["SignedPassword"].Value;
// 5:若签名密码不对，不应该能读取私钥
if (StringCoding.EncodeMD5Encrypt32(signedPassword).Equals(keySignedPassword))
{
privateKey = xmlDocument.SelectSingleNode("//DigitalSignature/Key").Attributes["PrivateKey"].Value;
}
return(privateKey);
}
